Troubleshooting guide

TROUBLESHOOTING GUIDE
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COM-
PRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO A'n'EMPTING ANY
REPAIRS, UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.
PROBLEM
Excessive tank pressure- safety
valve pops off
Air leaks at fittings.
Air leaks at or inside check
valve.
Air leaks at pressure switch
release valve.
Air leaks in air tank or at air tank
welds.
CAUSE i CORRECTION
Pressure reading on the regu-
lated pressure gauge drops
when an accessory is used.
Pressure switch does not shut off motor
when compressor reaches "cut-out"
pressure
Pressure switch "cut-out* too high,
Tube fittings are not tight enough.
Defective or dirty check valve.
Defective pressure switch release
valve.
Defective check valve.
Defective air tank.
Move the pressure switch lever to the "OFF" position
It the outfit doesn't shut off, and the electrical conta cts
are welded together, replace the pressure switch.
If the contacts are good, check to see if the pin in the
bottom of the pressure release valve is stuck If it
does not move freely, replace the valve
Return the outfit to an authorized dealer to check and
adjust, or replace switch,
Tighten fittings where air can be heard escaping
Check fittings with soapy water solution DO NOT
OVER-TIGHTEN.
A defective check valve results in a constant air leak
at the pressure release valve where there is pressure
in the tank and the compressor is shut off. Remove
and clean or replace check valve. DO NOT OVER-
TIGHTEN.
Remove and replace the release valve.
A defective check valve results in a constant air leak
at the pressure release valve when there is pressure
in the tank and the compressor is shut off. Remove
and clean or replace check valve. DO NOT OVER-
TIGHTEN.
Air tank must be replaced. Do not repair the leak.
DO NOT DRILL INTO, WELD OR OTHERWISE
MODIFY AIR TANK OR IT WILL WEAKEN.
THE TANK CAN RUPTURE OR EXPLODE.
Air leaks between head and Leaking gasket. Torque head screwsto 8 ft. lbs. lfthis does not stop
valve plate, leak, replace gasket.
Itis normalfor'some"pressure dropto
occur.
If there is an excessive amount of pressure drop
when the accessory is used. adjust the regulator
following the instructions on page 10.
NOTE
Adjust the regulated pressure underflow
conditions (while accessory is being
used).
10